how to set application data to an s-function using s-function wizard

i am trying to modify an s-function block using command line

blkNames = find_system(bdroot,'lookundermasks','all','BlockType','S-Function');
for blkIdx = 1:numel(blkNames)
  blkHandle = get_param(blkNames{blkIdx}, 'Handle');
  appdata = sfunctionwizard(blkHandle,'GetApplicationData');
  appdata = sfunctionwizard(blkHandle,'Build',appdata);
end

this code allows me to build an s-function from command line and the appdata is a structure which has all the information like s-function name, inports, outports , their datatype etc. can i modify the appdata and write it back to the s-function block using the s-function wizard?

[giga]

Hi did you find any solution? I am interested in the same problem! Thanks